<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div{
            border: 1px solid red;
            margin:50px;
        }
    </style>
</head>
<body>
<div style="width: 400px;height: 400px;">
    <!--<div style="width: 100px;height: 100px;position: relative;bottom:-300px;"></div>-->
   <!-- <div style="width: 100px;height: 100px;position: relative;top:0px;"></div>-->
    <div style="width: 100px;height: 100px;position: relative ;bottom:0px;"></div>
</div>
</body>
</html>
